Jakmister 900W 17000rpm 3 in 1 Variable Speed Sanitizer Single Speed Vacuum Cleaner & Electric Air Blower S-R900W is the right device to help you clean dust from your computer, electrical gadgets, kitchen appliances and other devices or any difficult corner of the house were cleaning with a wet mop is nearly impossible. Its high-performance motor blows out high-volume air that helps you clean all dust and dirt effectively   General frequently asked questions Q1. What is the frequency of this Jackmister 3-in-1 product? The frequency of this Jackmister 3-in-1 product is 50 Hz.   Q2. What is the voltage of this Jackmister 3-in-1 product? The voltage of this Jackmister 3-in-1 product is 220V.